const exp = require("constants")
var crypto = require("crypto")

exports.md5 = function(content) {
    var md5 = crypto.createHash("md5")
    md5.update(content)
    return md5.digest('hex')
}

exports.toBase64 = function(content) {
    return new Buffer(content).toString('base64')
}

exports.fromBase64 = function(content) {
    return new Buffer(content,'base64').toString()
}